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Hi

If I have a 3d rectangular room,  and I want to model 1/2 of that room because of symmetry boundary condition. in acousticFEM problem, what is my symmetry boundary condition in symmetry plane?

I mean at seymmetry plane which kind of constraint I should apply on pressure of the sound wave?

thanks alot

Hi all,

1. A new version of Eigen (v 3.0 now) is out (on March 23, 2011), and it seems promising. First, a few links:

The main page for the project is here: [^]. The page for v.3.0 is here: [^]. It seems to be very fast: [^].

dear my friends!:

 i doult whether the value of K caculated by ANSYS is proper for a cracked model with Ramberg-Osgood constitutive relationship?   

Dear All,

i am new to this forum and would like say hello to everybody!

I am currently working on a hip joint model consistent mainly
of the cartilogenous tissues. Biphasic Materials consitent of
a linear elastic Matrix and trapped fluid, which i modelled in
abaqus using Soil Mechanics (permeability).

At the moment, however, i am unable to obtain convergence. The
whole calculation stops at ca 0.122 sec out of total 1 sec. I
guess its just one parameter set wrong in Contact or an convergence

I am a master student doing research on cohesive zone modeling of polymer coated steel.. I use abaqus 6.9 for my simulation.. I have three questions on cohesive zone modelling..

1. Can we input PET material properties directly in Abaqus 6.9

2. Can we input PVC material properties directly in Abaqus 6.9

3. I am using Standard abaqus cohesive Zone models embedded in abaqus standard pack. Is that right approach ?

Please clarify.. This would be life saving help..

Sincerely,

Manivannan..!!

Hi,

I am trying to do with ABAQUS Cae now what I usually and successfully did with MSC Patran - produce a unit cell for particle reinforced composite. In other words,  I need to generate a "ball in a box" model.

So, I produce a part Cube and a  part Ball. After that I create Sections and Instances (what seems to be unnecessary if comparing with Patran, but apparently needed to link CAE with CADs), and assign Materias (lets say, Glass to Ball, and Polymer to Cube).